\documentclass[a4paper,10pt]{article}

\usepackage{graphicx}
\usepackage[utf8]{inputenc}
\usepackage[spanish]{babel}
\usepackage{color}
\usepackage{amsmath}

\usepackage{listings}
\lstset{ %
language=Python,                % choose the language of the code
basicstyle=\footnotesize,       % the size of the fonts that are used for the code
numbers=left,                   % where to put the line-numbers
numberstyle=\footnotesize,      % the size of the fonts that are used for the line-numbers
stepnumber=1,                   % the step between two line-numbers. If it is 1 each line will be numbered
numbersep=5pt,                  % how far the line-numbers are from the code
backgroundcolor=\color{white},  % choose the background color. You must add \usepackage{color}
showspaces=false,               % show spaces adding particular underscores
showstringspaces=false,         % underline spaces within strings
showtabs=false,                 % show tabs within strings adding particular underscores
frame=single,           % adds a frame around the code
tabsize=2,          % sets default tabsize to 2 spaces
captionpos=b,           % sets the caption-position to bottom
breaklines=true,        % sets automatic line breaking
breakatwhitespace=false,    % sets if automatic breaks should only happen at whitespace
escapeinside={\%*}{*)}          % if you want to add a comment within your code
}

\title{
\includegraphics[width=0.25\textwidth]{escudodelauba2uj.jpg}
\includegraphics[width=0.35\textwidth]{logofiubabajatm9.jpg}\\[2.5ex] 
\textbf{66.75 Procesos Estocásticos
\\
    Sistema de comunicación BPSK
}
}

\author{							
	Nicolás Di Tomaso \textit{Padrón Nro. 88.408}	\\
		\texttt{ nico\_dito@yahoo.com.ar }			\\[2.5ex]
	Raul Lopez \textit{Padrón Nro. 88.430}	\\
		\texttt{ raulopez0@gmail.com}			\\[2.5ex]
	\normalsize{2do. Cuatrimestre de 2013}									\\
	\normalsize{66.75 Procesos Estocásticos}									\\
	\normalsize{Facultad de Ingeniería, Universidad de Buenos Aires}		\\   
}
\date{}

\begin{document}

\maketitle

\thispagestyle{empty}   % quita el número en la primer página

\newpage

\section{Ejercicio 1}
\input{./Ej_1.tex}

\section{Ejercicio 2}
\input{./Ej_2.tex}

\section{Ejercicio 3}
\input{./Ej_3.tex}

\section{Ejercicio 4}
\input{./Ej_4.tex}

\section{Ejercicio 5}
\input{./Ej_5.tex}

\section{Ejercicio 6}
\input{./Ej_6.tex}



\end{document}

